I'd like to represent graphically/visually a fund/portfolio by something that resembles a pie chart. But... the fund/portfolio contains things that have negative value (think of liabilities such as: accrued fees, FX hedging marks etc.) These are relatively quite small (e.g., less than 10%).
How do I graphically present such a portfolio? I like the pie chart, but other suggestions are welcome too. However, I'm not super enthusiastic about a single column bar chart. I'm hoping for some ingenious find.